Part A: A very special island is inhabited only by knights, always tell the truth, and knaves, always lie. You meet two inhabitants: A and B. A says, "am a knave, but B isn't." Using the truth table to show "Who is a knight ? ". Part B: You meet three more inhabitants: C, D, and E. C says, "We are all lying." D says, "Exactly one is telling the truth." Using the truth table to show "Who is a knight?"..